Java/英语：求外语帝解释这里的in

Java/英语：求外语帝解释这里的in
As customary in
programming tradition,here is an example illustrating the simplest way to
output "Hello world" using SLF4J.It begins by getting a logger with
the name "HelloWorld".This logger is 【in turn】 used to log the message
"Hello World".
import
org.slf4j.Logger;
import
org.slf4j.LoggerFactory;
public class
HelloWorld {
public static void main(String[] args) {
Logger logger =
LoggerFactory.getLogger(HelloWorld.class);
logger.info("Hello World");
}
}